I'm writing a script that's designed to search an entire file, and respond with found if he found a match. However, he only seems to search the first line for matches. here's the
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If FindStringInFile("C:Usersdanl.FATLANDDocumentsvare.txt", TextBox1.Text) Then
[Code].....
what i need to do is open a txt file, read line by line, decode each line into an array and display. Now all works ok apart from one line.
sTextLine = objReader.ReadLine() <-- Value of string cannot be converted.
full code here
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Dim objReader As New System.IO.StreamReader(sOpenFile.Text)
Dim sTextLine As New ArrayList()
Dim sText As String = ""
Dim i As Integer = 0
[code]....
i want to make a programme that search for file then delete it but i dont know what is the code of search
View 2 RepliesI'm trying to read a file line by line into an array but It skips the item at index:3 I have it msgboxing just to make sure and it wont even touch it.
Dim Btn As Button = DirectCast(sender, Button)
Dim path As String = Application.StartupPath & "Libraries" & Btn.Text.Replace(" ", "_") & ".ipt"
Dim i As Integer = 0
Dim lines As String() = IO.File.ReadAllLines(path)
[code]....
This code searches your system and displays ever file that it found in to a listbox. The problem is that it always gets stuck at one file called C:windowsvery long name but ends with runtime.exe how can i add a skip function so that if does get stuck it will just skip that file.It always says "The device is not ready."can you fix this bug.I have been fighting with this for 3:28 hours
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I have a list of random numbers in my text file.I read it like this.
Dim FILE_NAME As String = "C: est.txt"
Dim TextLine As String
If System.IO.File.Exists(FILE_NAME) = True Then
[code]....
How can I separate that in to 2 listbox?In my ListBox1 I want add lines with starting number like this ( 0905, 0906, 0915, 0916, 0917, 0926, 0927 ) And in my ListBox2 is with numbers start with this ( 0909, 0910, 0912, 0918, 0919, 0920, 0921, 0928, 0929 )How can I compare lines by multiple choices like that?
Ok, I saw this code on the net
Dim sFileName As String
Dim srFileReader As System.IO.StreamReader
Dim sInputLine As String
sFileName = "D:UsersArbenDesktopSerieA.txt"
srFileReader = System.IO.File.OpenText(sFileName)
[Code]...
under the code I pasted at the top, but I get the text on line1 in all labels, like all labels become 1, while the text should be 1, 2, 3 and so on. So anyone can help me do that, each label gets the value of the next line in the txt file
I am creating a class that searches a binary file for a specific customer number. I am using a binary search that keeps on slicing the file in half until I find the customer number while is sorted. Once it finds it I am positioning it at the first instance of that Customer number as there can be multiple records with the same Cus Number.
Now here is my question. I now need to loop through this Customers records and do some data base searches. Since I want to make my class as generic as possible what should I pass back to the calling class? An Array with all their records. If I do this I have to loop twice, once in the class and once when it passes the array bac to the original calling class?
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In VB6 I could use an asterisk as a wildcard when searching the object browser. For instance, searching on "c*Report" would find "cFooReport" and "cReport". I can't seem to do the same in VS2008, am I just missing something obvious?
View 1 RepliesI have a windows form which to summarize lets the user open a file containing 32 bit hashes, then search for one of them. The hash is then converted to its string representation. The application is giving the results I would expect but I'd like to make it execute faster than it does now; some files can be pretty big > 100 MB.
I'm doing the file read using a BackgroundWorker object to display progress updates and ensure that the UI is available during the process. But for that i need to add a System.Threading.Sleep(1) instruction in the loop; otherwise the application freezes with big files. And System.Threading.Sleep(1) creates a noticeable lag. Any suggestions on how to make searches fast without freezing the UI? Getting speeds comparable to hex editor programs for example.
I need some guidance on the best way to proceed with searching a file content. I have a large file (see attachment) that is in text form, some of these files could be upto 50 times as big, therefore creating a huge file. These files contain information that is produced from another application and therefore I am unable to change the format of the file.
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How would i go about reading a file Line by Line that within that line The values are delimited by " Example of the data:
"bob" "cat" "1243"
"steve" dog" "6789"
I've started this with this code but not sure how to go about the next stage:
Using MyReader As New _
Microsoft.VisualBasic.FileIO.TextFieldParser(My.Application.Info.DirectoryPath & "Records28112011.jd")
MyReader.TextFieldType = FileIO.FieldType.Delimited
[code]....
i'm trying to make a program that searches for a specific file in a specific file, so when the program loads it "writes" in checked list box the names of the drives installed to the computer, but what i want to do is: when the user checks the box, i want it to search for the file in that drive, but i don't know how to do it...
I'm using:
Imports System.IO
Imports System.Collections.ObjectModel
Public Class Form1
[Code].....
how to make it search in the other drives using the checked listbox?
Basically what I'm trying to do is read a text file line by line. After each line is read, it will put each line into a separate text box. I've been trying to do this for a while and so far I haven't been able to. I tried using a for loop, but that just put all my lines in to one textbox.
View 8 RepliesI'm reading a text file with StreamReader, line by line. If a condition is met, then I do an operation and then start reading the file again from the first line. I realize I could close and then re-open the file, but surely this would be very slow.
I could do this easily in VB6, but pulling my hair out trying to do this in vB.net. It seems that 'Seek' is the function to use, but it doesn't work.
I've seen other examples, where it works, but you must open it a different way -- with a file number.
Imports System.IO
Dim I as Integer
Dim LineText as String
[Code].....
I am trying to read in a TextBox line by line and take the first 7 characters of each line and output everything in another TextBox.This is what I have so far.
Dim line, lines() As String
lines = TextBox1.Text.Split(Environment.NewLine)
Dim i As Integer = 0
[code].....
I am searching a large text file for a word user inputs. When I test the following code, the app is searching the text file more than 1 X. I only need it to search the text file from beginning to end 1X. Then return the queried results.[code]
View 3 RepliesLets assume i have a txt file in "c:/" and the txt file called: "hello.txt" [c:hello.txt], and i have 1 line. how do i add new line with the text of textbox1?
View 2 RepliesI want to make a program that searches for a RGB color and clicks on it, WITHIN the program.
View 2 RepliesWebBrowser1.Document.GetElementById("fieldname").SetAttribute("value", (TextBox4.Text))How can I add something to the end of this? So it is like "Textfrombox WhatIwanttoadd"
2. If I have a .txt file, how can I make it load a line from that file? Then repeat this using a different line from the .txt file?
i have a listbox that lists the contents of a .txt file, How can i make it so that when i click a button it will delete the selected line from the listbox from the file?
View 3 RepliesI am facing problem with a vb.net code, it adds a second line on the txt file why ?
PHP
Dim fs As New FileStream("pwp.txt", FileMode.Create, FileAccess.Write)
Dim s As New StreamWriter(fs)
s.WriteLine(TextBox1.Text)
s.Close()
Me.Hide()
I'm trying to retrieve line 5 - 8 from a text file, but I can't figure out how. I can retrieve a single line and I can retrieve all lines, but I can't figure out how to get those specific ones. I tried using substring but it didn't work.
View 11 RepliesI have a routine that will check a text file for a line to be deleted and deletes it when found. Now the problem i have found is that the lines can be slightly different depending on what the user has done. Now in the TXTSETUP.SIF which is a file in the Windows Source you have the following lines FIG 1. FIG 1: It may look like this: ascent.jpg = 1,,,,,,,,3,3autumn.jpg = 1,,,,,,,,3,3
View 1 RepliesPrivate Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If System.IO.File.Exists(FILE_NAME) = True Then
Dim lines As New List(Of String)
Dim text As Array = File.ReadAllLines(FILE_NAME)
lines.AddRange(text)
[Code]...
i get this error Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index
for the line lines.RemoveAt(lines.IndexOf(ListBox1.SelectedIndex))
getting a random line on a text file then assigning it to a variable?
View 4 RepliesI saved a text file. The text characters were in RichTextBox iwth multiple lines. I used
RichTextBox1.AppendText(ControlChars.Cr) or RichTextBox.AppendText(ControlChars.Lf)
at the end of each line, but when I opened this text file using NotePad, all lines were displayed with ONE line. The strange thing is: if I open the same text file using other editors, .e.g. an IDE of Microchip or Freescale or Multi-edit...the text display had multiple lines as expected.
What should I do to make display as expected in NotePad?
Im looking for a function that when passed a line will run through a textfile and remove said name for example in a textfile that contains
One
Two
Three
[code]....
I need to be able to know how to search a text file in VB for a particular line and then display it. the files I'm trying to use are set up as: ID, Name, Address, Birthday, Pay-Roll TypeSo I need to know how to search the file for the ID number and then display the rest of that lin
View 1 RepliesHow can I save text from a textbox onto a new line in a .txt file?this is a one-line textbox and I don't want to have any line skips like this
line 1
line 2
line 3
line 4
